<!-- ignore the following lines, they are not important to this demo -->
<jigsaw-demo-description [summary]="summary" [content]="description">
</jigsaw-demo-description>


<!-- start to learn the demo from here -->
<h4>单选按钮-TrackItemBy</h4>
<jigsaw-radios [(value)]="selectedProduct"
               (valueChange)="radioChange($event)"
               trackItemBy="pro_name,pro_type">
    <jigsaw-radio-option *ngFor="let item of products" [value]="item">
        {{item.pro_name}}
    </jigsaw-radio-option>
</jigsaw-radios>

选择的城市的ID号是 : {{selectedProduct.pro_name}}

